Institution
Universitätsbibliothek der Humboldt-Universität zu Berlin
6
Basel University Library
3
University of Graz
3
Bavarian State Library
2
Saxon State and University Library
2
University and Regional Library of Tyrol
2
University Library of Greifswald
1
Bern University Library
1
University Library of Regensburg
1
University Library Salzburg
1
Zentralbibliothek Zürich
1